/* ==========================================================================
   免费黑料入口 - 整站样式表
   版本：1.0
   说明：覆盖全站所有页面，按 base / layout / components / pages / responsive 分组
   ========================================================================== */

/* ==========================================================================
   Base - 基础重置与全局变量
   ========================================================================== */

:root {
  --color-primary: #0F172A;
  --color-accent: #14B8A6;
  --color-bg-light: #F8FAFC;
  --color-accent-orange: #F59E0B;
  --color-text: #1E293B;
  --color-text-light: #64748B;
  --color-border: #E2E8F0;
  --color-white: #FFFFFF;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial, sans-serif;
  --container-width: 1200px;
  --inner-content-width: 1080px;
  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 8px;
  --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.08);
  --shadow-md: 0 4px 12px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 8px 24px rgba(15, 23, 42, 0.1);
  --transition-base: 0.2s ease;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.7;
  color: var(--color-text);
  background-color: var(--color-bg-light);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--color-accent);
  text-decoration: none;
  transition: color var(--transition-base);
}

a:hover {
  color: var(--color-primary);
}

ul,
ol {
  list-style: none;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-weight: 600;
  line-height: 1.4;
  color: var(--color-primary);
}

h1 {
  font-size: 32px;
  line-height: 1.3;
}

h2 {
  font-size: 24px;
  line-height: 1.4;
}

h3 {
  font-size: 18px;
  line-height: 1.5;
}

p {
  margin-bottom: 1em;
}

p:last-child {
  margin-bottom: 0;
}

/* ==========================================================================
   Layout - 全站布局骨架
   ========================================================================== */

.site-body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  background-color: var(--color-bg-light);
}

.site-main {
  flex: 1 0 auto;
}

/* 内页统一容器 */
.inner-main {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px 64px;
}

/* 大布局容器 */
.layout-shell {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* ==========================================================================
   Components - 页头与导航
   ========================================================================== */

.site-header {
  background-color: var(--color-white);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand-link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  flex-shrink: 0;
}

.brand-name {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: 0.01em;
}

.brand-tagline {
  font-size: 13px;
  color: var(--color-text-light);
  white-space: nowrap;
}

.main-nav {
  display: flex;
  align-items: center;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-list li {
  position: relative;
}

.nav-link {
  display: block;
  padding: 8px 16px;
  font-size: 15px;
  color: var(--color-text);
  border-radius: var(--radius-sm);
  transition: background-color var(--transition-base), color var(--transition-base);
}

.nav-link:hover {
  color: var(--color-accent);
  background-color: var(--color-bg-light);
}

.nav-link.is-current {
  color: var(--color-accent);
  font-weight: 600;
}

.nav-link.is-current::after {
  content: "";
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: -2px;
  height: 2px;
  background-color: var(--color-accent);
  border-radius: 1px;
}

/* 移动端导航按钮 */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 10px;
  background: none;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
}

.toggle-bar {
  display: block;
  width: 100%;
  height: 2px;
  background-color: var(--color-primary);
  border-radius: 1px;
  transition: transform var(--transition-base), opacity var(--transition-base);
}

.nav-toggle[aria-expanded="true"] .toggle-bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .toggle-bar:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] .toggle-bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ==========================================================================
   Components - 面包屑
   ========================================================================== */

.breadcrumb-wrap {
  background-color: var(--color-white);
  border-bottom: 1px solid var(--color-border);
}

.breadcrumb {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 12px 24px;
  font-size: 14px;
  color: var(--color-text-light);
}

.breadcrumb ol {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.breadcrumb li {
  display: flex;
  align-items: center;
  gap: 8px;
}

.breadcrumb li + li::before {
  content: "/";
  color: var(--color-text-light);
  opacity: 0.5;
}

.breadcrumb a {
  color: var(--color-text-light);
}

.breadcrumb a:hover {
  color: var(--color-accent);
}

.breadcrumb-current {
  color: var(--color-text);
  font-weight: 500;
}

.breadcrumb-sep {
  margin: 0 8px;
  color: var(--color-text-light);
  opacity: 0.5;
}

/* ==========================================================================
   Components - 页脚
   ========================================================================== */

.site-footer {
  background-color: var(--color-primary);
  color: rgba(255, 255, 255, 0.8);
  padding: 48px 0 0;
}

.footer-inner {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 40px;
}

.footer-col h3 {
  color: var(--color-white);
  font-size: 16px;
  margin-bottom: 16px;
}

.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-col a {
  color: rgba(255, 255, 255, 0.7);
  font-size: 14px;
}

.footer-col a:hover {
  color: var(--color-accent);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  margin-top: 40px;
  padding: 16px 24px;
  text-align: center;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.5);
}

/* ==========================================================================
   Components - 通用按钮、链接、卡片
   ========================================================================== */

.btn-primary {
  display: inline-block;
  padding: 12px 28px;
  background-color: var(--color-accent);
  color: var(--color-white);
  font-size: 15px;
  font-weight: 600;
  border-radius: var(--radius-md);
  transition: background-color var(--transition-base), box-shadow var(--transition-base);
}

.btn-primary:hover {
  background-color: #0FA896;
  color: var(--color-white);
  box-shadow: var(--shadow-md);
}

.btn-secondary {
  display: inline-block;
  padding: 12px 28px;
  background-color: transparent;
  color: var(--color-primary);
  font-size: 15px;
  font-weight: 600;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: border-color var(--transition-base), color var(--transition-base);
}

.btn-secondary:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-accent);
}

.card-link::after {
  content: "→";
  transition: transform var(--transition-base);
}

.card-link:hover {
  color: var(--color-primary);
}

.card-link:hover::after {
  transform: translateX(4px);
}

/* ==========================================================================
   Components - 相关链接
   ========================================================================== */

.related-links {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 32px 24px 48px;
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
}

.related-links-label {
  font-size: 14px;
  color: var(--color-text-light);
  flex-shrink: 0;
}

.related-links-item {
  font-size: 14px;
  color: var(--color-text);
  padding: 6px 16px;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  transition: border-color var(--transition-base), color var(--transition-base);
}

.related-links-item:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

/* ==========================================================================
   Components - 页面标题区
   ========================================================================== */

.page-header {
  padding: 40px 0 24px;
}

.page-title {
  font-size: 32px;
  line-height: 1.3;
  color: var(--color-primary);
  margin-bottom: 0;
}

.page-title-block {
  padding: 8px 0 24px;
}

.page-lead {
  font-size: 17px;
  color: var(--color-text-light);
  line-height: 1.7;
}

.page-intro {
  font-size: 16px;
  color: var(--color-text-light);
  margin-bottom: 32px;
}

/* ==========================================================================
   Pages - 首页
   ========================================================================== */

.home-main {
  width: 100%;
}

/* 首屏监测面板 */
.hero-panel {
  background-color: var(--color-primary);
  padding: 64px 0;
}

.hero-inner {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.hero-copy {
  color: rgba(255, 255, 255, 0.9);
}

.hero-eyebrow {
  display: inline-block;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-accent);
  margin-bottom: 16px;
  text-transform: uppercase;
  letter-spacing: 0.02em;
}

.hero-copy h1 {
  color: var(--color-white);
  font-size: 36px;
  line-height: 1.3;
  margin-bottom: 20px;
}

.hero-lead {
  font-size: 17px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: 32px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 20px;
}

.hero-actions .btn-primary {
  background-color: var(--color-accent);
}

.hero-actions .btn-secondary {
  border-color: rgba(255, 255, 255, 0.3);
  color: var(--color-white);
}

.hero-actions .btn-secondary:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.hero-note {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.5);
}

.hero-figure {
  margin: 0;
  background-color: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.hero-figure img {
  width: 100%;
  height: 320px;
  object-fit: cover;
}

.hero-figure figcaption {
  padding: 12px 16px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.6);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

/* 品牌定位一句话 */
.brand-line {
  background-color: var(--color-white);
  border-bottom: 1px solid var(--color-border);
}

.brand-line-inner {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 32px 24px;
}

.brand-line-inner p {
  font-size: 20px;
  font-weight: 500;
  color: var(--color-primary);
  text-align: center;
  margin: 0;
}

/* 服务矩阵 */
.service-matrix {
  padding: 64px 0;
}

.section-header {
  max-width: var(--container-width);
  margin: 0 auto 40px;
  padding: 0 24px;
}

.section-header h2 {
  margin-bottom: 8px;
}

.section-header p {
  color: var(--color-text-light);
  max-width: 640px;
}

.matrix-grid {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.matrix-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  transition: box-shadow var(--transition-base), transform var(--transition-base);
}

.matrix-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.matrix-card h3 {
  font-size: 18px;
  margin-bottom: 12px;
}

.matrix-card p {
  font-size: 14px;
  color: var(--color-text-light);
  margin-bottom: 20px;
}

/* 行业方案预览 */
.industry-preview {
  padding: 64px 0;
  background-color: var(--color-white);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.industry-grid {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.industry-card {
  background-color: var(--color-bg-light);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: box-shadow var(--transition-base);
}

.industry-card:hover {
  box-shadow: var(--shadow-md);
}

.industry-card-media img {
  width: 100%;
  height: 180px;
  object-fit: cover;
}

.industry-card-body {
  padding: 24px;
}

.industry-card-body h3 {
  margin-bottom: 8px;
}

.industry-card-body p {
  font-size: 14px;
  color: var(--color-text-light);
  margin-bottom: 16px;
}

/* 合作流程步骤 */
.process-steps {
  padding: 64px 0;
}

.steps-list {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.step-item {
  position: relative;
  padding: 24px;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background-color: var(--color-accent);
  color: var(--color-white);
  font-size: 16px;
  font-weight: 700;
  border-radius: 50%;
  margin-bottom: 16px;
}

.step-content h3 {
  margin-bottom: 8px;
}

.step-task {
  font-size: 14px;
  color: var(--color-text);
  margin-bottom: 8px;
}

.step-result {
  font-size: 13px;
  color: var(--color-text-light);
}

.steps-cta {
  max-width: var(--container-width);
  margin: 40px auto 0;
  padding: 0 24px;
  text-align: center;
}

/* FAQ 预览 */
.faq-preview {
  padding: 64px 0;
  background-color: var(--color-white);
  border-top: 1px solid var(--color-border);
}

.faq-list {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 24px;
}

.faq-item {
  border-bottom: 1px solid var(--color-border);
}

.faq-item:last-child {
  border-bottom: none;
}

.faq-item summary {
  padding: 20px 0;
  font-size: 16px;
  font-weight: 600;
  color: var(--color-primary);
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  content: "+";
  font-size: 20px;
  color: var(--color-accent);
  flex-shrink: 0;
  transition: transform var(--transition-base);
}

.faq-item[open] summary::after {
  transform: rotate(45deg);
}

.faq-item p {
  padding: 0 0 20px;
  font-size: 15px;
  color: var(--color-text-light);
}

.faq-more {
  max-width: 800px;
  margin: 32px auto 0;
  padding: 0 24px;
  text-align: center;
}

/* ==========================================================================
   Pages - 关于品牌页
   ========================================================================== */

.page-layout.sidebar-left {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 48px;
  align-items: start;
}

.sidebar {
  position: sticky;
  top: 88px;
}

.sidebar-inner {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px;
}

.sidebar-inner h2 {
  font-size: 16px;
  margin-bottom: 16px;
}

.sidebar-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.sidebar-list a {
  display: block;
  padding: 8px 12px;
  font-size: 14px;
  color: var(--color-text);
  border-radius: var(--radius-sm);
  transition: background-color var(--transition-base), color var(--transition-base);
}

.sidebar-list a:hover {
  background-color: var(--color-bg-light);
  color: var(--color-accent);
}

.content-section {
  margin-bottom: 48px;
}

.content-section .lead {
  font-size: 18px;
  color: var(--color-text);
  margin-bottom: 16px;
}

.content-section p {
  color: var(--color-text-light);
  margin-bottom: 16px;
}

.content-section h2 {
  margin-bottom: 16px;
}

.boundary-list {
  margin: 16px 0;
  padding: 0;
}

.boundary-list li {
  padding: 12px 0;
  border-bottom: 1px solid var(--color-border);
  display: flex;
  gap: 12px;
  align-items: flex-start;
}

.boundary-list li:last-child {
  border-bottom: none;
}

.boundary-list strong {
  color: var(--color-primary);
  flex-shrink: 0;
}

.terminology-list {
  margin-top: 16px;
}

.term-item {
  padding: 16px 0;
  border-bottom: 1px solid var(--color-border);
}

.term-item:last-child {
  border-bottom: none;
}

.term-item dt {
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 4px;
}

.term-item dd {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.6;
}

.image-block {
  margin: 32px 0;
}

.image-block img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
}

.image-block figcaption {
  padding: 12px 0;
  font-size: 13px;
  color: var(--color-text-light);
  text-align: center;
}

/* ==========================================================================
   Pages - 服务能力页
   ========================================================================== */

.page-layout {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 48px;
  align-items: start;
}

.main-article {
  min-width: 0;
}

.service-stage-block {
  margin-bottom: 48px;
  padding: 32px;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.stage-head {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 16px;
}

.stage-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background-color: var(--color-accent);
  color: var(--color-white);
  font-size: 18px;
  font-weight: 700;
  border-radius: var(--radius-md);
  flex-shrink: 0;
}

.stage-desc {
  color: var(--color-text-light);
  margin-bottom: 24px;
}

.stage-detail {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.detail-item {
  padding: 20px;
  background-color: var(--color-bg-light);
  border-radius: var(--radius-md);
}

.detail-item h3 {
  margin-bottom: 8px;
}

.detail-item p {
  font-size: 14px;
  color: var(--color-text-light);
  margin: 0;
}

.price-factors-block {
  padding: 32px;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.price-factors-block h2 {
  margin-bottom: 16px;
}

.price-factors-block p {
  color: var(--color-text-light);
  margin-bottom: 16px;
}

.factor-list {
  margin: 16px 0;
}

.factor-list li {
  padding: 12px 0;
  border-bottom: 1px solid var(--color-border);
  font-size: 14px;
  color: var(--color-text-light);
}

.factor-list li:last-child {
  border-bottom: none;
}

.factor-list strong {
  color: var(--color-primary);
}

.sidebar-area {
  min-width: 0;
}

.media-block {
  margin-bottom: 24px;
}

.media-block figure {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.media-block img {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.media-block figcaption {
  padding: 12px 16px;
  font-size: 13px;
  color: var(--color-text-light);
}

.side-nav {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  margin-bottom: 24px;
}

.side-nav h2 {
  font-size: 16px;
  margin-bottom: 16px;
}

.side-nav ul {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.side-nav a {
  display: block;
  padding: 8px 12px;
  font-size: 14px;
  color: var(--color-text);
  border-radius: var(--radius-sm);
}

.side-nav a:hover {
  background-color: var(--color-bg-light);
  color: var(--color-accent);
}

.related-links h2 {
  font-size: 16px;
  margin-bottom: 16px;
}

.related-links ul {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.related-links a {
  font-size: 14px;
}

/* ==========================================================================
   Pages - 行业方案页
   ========================================================================== */

.page-title-desc {
  font-size: 17px;
  color: var(--color-text-light);
  margin-bottom: 32px;
}

.industry-tabs {
  margin-bottom: 32px;
}

.industry-tabs ul {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.industry-tabs a {
  display: inline-block;
  padding: 10px 24px;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text);
  transition: background-color var(--transition-base), color var(--transition-base), border-color var(--transition-base);
}

.industry-tabs a:hover,
.industry-tabs a.is-active {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-white);
}

.industry-cards {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.industry-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.card-inner {
  padding: 32px;
}

.industry-head {
  margin-bottom: 24px;
}

.industry-head h2 {
  margin-bottom: 8px;
}

.industry-tag {
  display: inline-block;
  padding: 4px 12px;
  background-color: var(--color-bg-light);
  border-radius: var(--radius-sm);
  font-size: 13px;
  color: var(--color-accent);
  font-weight: 600;
}

.industry-body {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.industry-section {
  padding: 20px;
  background-color: var(--color-bg-light);
  border-radius: var(--radius-md);
}

.industry-section h3 {
  margin-bottom: 8px;
  font-size: 16px;
}

.industry-section p {
  font-size: 14px;
  color: var(--color-text-light);
  margin: 0;
}

.industry-media {
  margin: 32px 0;
}

.industry-media img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
}

.industry-media figcaption {
  padding: 12px 0;
  font-size: 13px;
  color: var(--color-text-light);
  text-align: center;
}

.industry-note {
  padding: 32px;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.industry-note h2 {
  margin-bottom: 16px;
}

.industry-note p {
  color: var(--color-text-light);
  margin-bottom: 24px;
}

.note-links {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.note-links a {
  font-size: 14px;
  font-weight: 600;
}

/* ==========================================================================
   Pages - 监测方法页
   ========================================================================== */

.version-bar {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px 32px;
  margin-bottom: 32px;
}

.version-info {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 8px;
}

.version-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.02em;
}

.version-number {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-primary);
}

.version-date {
  font-size: 14px;
  color: var(--color-text-light);
}

.version-desc {
  font-size: 14px;
  color: var(--color-text-light);
  margin: 0;
}

.doc-layout {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 48px;
  align-items: start;
}

.doc-sidebar {
  position: sticky;
  top: 88px;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px;
}

.doc-sidebar h2 {
  font-size: 16px;
  margin-bottom: 16px;
}

.topic-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.topic-list a {
  display: block;
  padding: 8px 12px;
  font-size: 14px;
  color: var(--color-text);
  border-radius: var(--radius-sm);
}

.topic-list a:hover {
  background-color: var(--color-bg-light);
  color: var(--color-accent);
}

.doc-content {
  min-width: 0;
}

.doc-intro {
  font-size: 17px;
  color: var(--color-text-light);
  margin-bottom: 32px;
}

.method-section {
  margin-bottom: 48px;
  padding: 32px;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.method-section h2 {
  margin-bottom: 16px;
}

.method-section p {
  color: var(--color-text-light);
  margin-bottom: 16px;
}

.method-figure {
  margin: 32px 0;
}

.method-figure img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
}

.method-figure figcaption {
  padding: 12px 0;
  font-size: 13px;
  color: var(--color-text-light);
  text-align: center;
}

.timeline-section {
  margin: 48px 0;
}

.timeline-section h2 {
  margin-bottom: 24px;
}

.timeline-group {
  margin-bottom: 32px;
  padding: 24px;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.timeline-group h3 {
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--color-border);
}

.timeline-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.timeline-list li {
  position: relative;
  padding-left: 20px;
  font-size: 14px;
  color: var(--color-text-light);
}

.timeline-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 8px;
  height: 8px;
  background-color: var(--color-accent);
  border-radius: 50%;
}

.check-tips {
  margin: 32px 0;
  padding: 24px 32px;
  background-color: #FFF7ED;
  border: 1px solid #FCD34D;
  border-radius: var(--radius-lg);
}

.check-tips h2 {
  font-size: 16px;
  margin-bottom: 16px;
  color: #92400E;
}

.check-tips ul {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.check-tips li {
  font-size: 14px;
  color: #78350F;
  padding-left: 20px;
  position: relative;
}

.check-tips li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--color-accent-orange);
  font-weight: 700;
}

/* ==========================================================================
   Pages - 合作流程页
   ========================================================================== */

.page-container {
  width: 100%;
}

.page-title-area {
  padding: 8px 0 24px;
}

.layout-shell {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 48px;
  align-items: start;
}

.main-content {
  min-width: 0;
}

.process-timeline-section {
  margin-bottom: 48px;
}

.process-timeline-section > h2 {
  margin-bottom: 8px;
}

.process-timeline-section > p {
  color: var(--color-text-light);
  margin-bottom: 32px;
}

.process-steps-list {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.process-step-item {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px;
}

.step-header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 20px;
}

.step-header .step-number {
  margin-bottom: 0;
}

.step-header h3 {
  font-size: 20px;
}

.step-body {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.current-task-block,
.sample-result-block {
  padding: 20px;
  border-radius: var(--radius-md);
}

.current-task-block {
  background-color: var(--color-bg-light);
  border-left: 3px solid var(--color-accent);
}

.sample-result-block {
  background-color: #F0FDFA;
  border-left: 3px solid var(--color-accent);
}

.current-task-block h4,
.sample-result-block h4 {
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 8px;
}

.current-task-block p,
.sample-result-block p {
  font-size: 14px;
  color: var(--color-text-light);
  margin: 0;
}

.check-tip-bar {
  margin-top: 16px;
  padding: 12px 20px;
  background-color: #FFF7ED;
  border-radius: var(--radius-md);
  font-size: 13px;
  color: #78350F;
}

.price-factors-section {
  padding: 32px;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  margin-bottom: 48px;
}

.price-factors-section h2 {
  margin-bottom: 16px;
}

.price-factors-section > p {
  color: var(--color-text-light);
  margin-bottom: 16px;
}

.price-factor-list {
  margin: 16px 0;
}

.price-factor-list li {
  padding: 12px 0;
  border-bottom: 1px solid var(--color-border);
  font-size: 14px;
  color: var(--color-text-light);
}

.price-factor-list li:last-child {
  border-bottom: none;
}

.process-image-block {
  margin: 32px 0;
}

.process-image-block img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
}

.process-image-block figcaption {
  padding: 12px 0;
  font-size: 13px;
  color: var(--color-text-light);
  text-align: center;
}

.sidebar-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  margin-bottom: 24px;
}

.sidebar-card h2 {
  font-size: 16px;
  margin-bottom: 16px;
}

.sidebar-links {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.sidebar-links a {
  font-size: 14px;
}

.sidebar-note {
  padding: 20px;
  background-color: var(--color-bg-light);
  border-radius: var(--radius-md);
  font-size: 13px;
  color: var(--color-text-light);
}

.sidebar-note p {
  margin: 0;
}

/* ==========================================================================
   Pages - 常见问题页
   ========================================================================== */

.faq-content {
  min-width: 0;
}

.faq-group {
  margin-bottom: 48px;
}

.faq-group h2 {
  margin-bottom: 24px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--color-accent);
}

.faq-group .faq-item {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  margin-bottom: 12px;
  padding: 0 24px;
}

.faq-group .faq-item summary {
  padding: 20px 0;
}

.faq-group .faq-item[open] {
  box-shadow: var(--shadow-sm);
}

.faq-answer {
  padding: 0 0 20px;
}

.faq-answer p {
  font-size: 15px;
  color: var(--color-text-light);
  margin-bottom: 12px;
}

.faq-answer p:last-child {
  margin-bottom: 0;
}

.feedback-entry {
  padding: 32px;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.feedback-entry h2 {
  margin-bottom: 16px;
}

.feedback-entry p {
  color: var(--color-text-light);
  margin-bottom: 16px;
}

.feedback-entry a {
  font-weight: 600;
}

.faq-aside {
  min-width: 0;
}

.aside-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  margin-bottom: 24px;
}

.aside-card h2 {
  font-size: 16px;
  margin-bottom: 16px;
}

.aside-links {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.aside-links a {
  font-size: 14px;
}

.aside-figure {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.aside-figure img {
  width: 100%;
  height: 180px;
  object-fit: cover;
}

.aside-figure figcaption {
  padding: 12px 16px;
  font-size: 13px;
  color: var(--color-text-light);
}

/* ==========================================================================
   Pages - 404 错误页
   ========================================================================== */

.error-main {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 80px 24px;
}

.error-panel {
  text-align: center;
  max-width: 480px;
}

.error-code {
  font-size: 72px;
  font-weight: 700;
  color: var(--color-accent);
  line-height: 1;
  margin-bottom: 16px;
}

.error-panel h1 {
  margin-bottom: 16px;
}

.error-desc {
  color: var(--color-text-light);
  margin-bottom: 32px;
}

.btn-back {
  display: inline-block;
  padding: 12px 32px;
  background-color: var(--color-accent);
  color: var(--color-white);
  font-size: 15px;
  font-weight: 600;
  border-radius: var(--radius-md);
  margin-bottom: 32px;
  transition: background-color var(--transition-base);
}

.btn-back:hover {
  background-color: #0FA896;
  color: var(--color-white);
}

.error-help {
  font-size: 14px;
  color: var(--color-text-light);
}

.error-help a {
  margin: 0 8px;
}

/* ==========================================================================
   Responsive - 响应式断点
   ========================================================================== */

/* 平板与中等屏幕 */
@media (max-width: 1024px) {
  .container,
  .header-inner,
  .footer-inner,
  .hero-inner,
  .section-header,
  .matrix-grid,
  .industry-grid,
  .steps-list,
  .breadcrumb,
  .inner-main,
  .layout-shell {
    padding-left: 20px;
    padding-right: 20px;
  }

  .matrix-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .industry-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .steps-list {
    grid-template-columns: repeat(2, 1fr);
  }

  .hero-inner {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .hero-figure img {
    height: 280px;
  }

  .page-layout {
    grid-template-columns: 1fr 280px;
    gap: 32px;
  }

  .page-layout.sidebar-left {
    grid-template-columns: 240px 1fr;
    gap: 32px;
  }

  .doc-layout {
    grid-template-columns: 240px 1fr;
    gap: 32px;
  }

  .layout-shell {
    grid-template-columns: 1fr 280px;
    gap: 32px;
  }

  .industry-body {
    grid-template-columns: 1fr;
  }
}

/* 手机端 */
@media (max-width: 768px) {
  .site-header {
    position: relative;
  }

  .header-inner {
    height: 64px;
    padding: 0 16px;
  }

  .brand-tagline {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }

  .main-nav {
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background-color: var(--color-white);
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-md);
    z-index: 99;
  }

  .nav-list {
    display: none;
    flex-direction: column;
    padding: 16px;
    gap: 4px;
  }

  .nav-list.is-open {
    display: flex;
  }

  .nav-list li {
    width: 100%;
  }

  .nav-link {
    padding: 14px 16px;
    font-size: 16px;
  }

  .nav-link.is-current::after {
    display: none;
  }

  .nav-link.is-current {
    background-color: var(--color-bg-light);
  }

  .breadcrumb {
    padding: 10px 16px;
    font-size: 13px;
  }

  .inner-main {
    padding: 0 16px 48px;
  }

  .page-header {
    padding: 24px 0 16px;
  }

  .page-title {
    font-size: 26px;
  }

  /* 首页移动端 */
  .hero-panel {
    padding: 40px 0;
  }

  .hero-inner {
    padding: 0 16px;
    gap: 24px;
  }

  .hero-copy h1 {
    font-size: 28px;
  }

  .hero-lead {
    font-size: 16px;
  }

  .hero-figure img {
    height: 200px;
  }

  .brand-line-inner {
    padding: 24px 16px;
  }

  .brand-line-inner p {
    font-size: 17px;
  }

  .service-matrix,
  .industry-preview,
  .process-steps,
  .faq-preview {
    padding: 40px 0;
  }

  .section-header {
    padding: 0 16px;
    margin-bottom: 24px;
  }

  .matrix-grid {
    grid-template-columns: 1fr;
    padding: 0 16px;
    gap: 16px;
  }

  .industry-grid {
    grid-template-columns: 1fr;
    padding: 0 16px;
    gap: 16px;
  }

  .steps-list {
    grid-template-columns: 1fr;
    padding: 0 16px;
    gap: 16px;
  }

  .faq-list {
    padding: 0 16px;
  }

  .faq-more {
    padding: 0 16px;
  }

  .steps-cta {
    padding: 0 16px;
  }

  .related-links {
    padding: 24px 16px;
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }

  /* 内页移动端布局调整 */
  .page-layout,
  .page-layout.sidebar-left,
  .doc-layout,
  .layout-shell {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .sidebar,
  .doc-sidebar {
    position: static;
    order: 2;
  }

  .sidebar-inner {
    padding: 16px;
  }

  .sidebar-list {
    flex-direction: row;
    flex-wrap: wrap;
    gap: 8px;
  }

  .sidebar-list a {
    padding: 6px 12px;
    font-size: 13px;
  }

  .sidebar-area,
  .faq-aside {
    order: 2;
  }

  /* 服务能力页移动端 */
  .service-stage-block {
    padding: 20px;
    margin-bottom: 24px;
  }

  .stage-detail {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .price-factors-block {
    padding: 20px;
  }

  .media-block img {
    height: 160px;
  }

  /* 行业方案页移动端 */
  .industry-tabs ul {
    flex-direction: column;
  }

  .industry-tabs a {
    width: 100%;
    text-align: center;
  }

  .card-inner {
    padding: 20px;
  }

  .industry-body {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .industry-note {
    padding: 20px;
  }

  /* 监测方法页移动端 */
  .version-bar {
    padding: 16px 20px;
  }

  .version-info {
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
  }

  .method-section {
    padding: 20px;
    margin-bottom: 24px;
  }

  .timeline-group {
    padding: 16px 20px;
  }

  .check-tips {
    padding: 16px 20px;
  }

  /* 合作流程页移动端 */
  .process-step-item {
    padding: 20px;
  }

  .step-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }

  .price-factors-section {
    padding: 20px;
  }

  .sidebar-card {
    padding: 16px;
  }

  /* FAQ 页移动端 */
  .faq-group .faq-item {
    padding: 0 16px;
  }

  .feedback-entry {
    padding: 20px;
  }

  /* 页脚移动端 */
  .footer-inner {
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    padding: 0 16px;
  }

  .footer-bottom {
    padding: 16px;
    font-size: 12px;
  }

  /* 404 页移动端 */
  .error-main {
    padding: 48px 16px;
  }

  .error-code {
    font-size: 56px;
  }
}

/* 小屏手机 */
@media (max-width: 480px) {
  .footer-inner {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .hero-actions {
    flex-direction: column;
    width: 100%;
  }

  .hero-actions .btn-primary,
  .hero-actions .btn-secondary {
    width: 100%;
    text-align: center;
  }

  .step-number {
    width: 32px;
    height: 32px;
    font-size: 14px;
  }
}